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 ###Instrução: Qual classificação é a Battersea Power Station?
 ###Tabelas: CREATE TABLE tallest_buildings_and_structures (tallest_buildings_and_structures_id AUTO_INCREMENT PRIMARY KEY, Rank VARCHAR, Name VARCHAR, Height metres / ft VARCHAR, Floors VARCHAR, Year INT) CREATE TABLE episodes_and_ratings (episodes_and_ratings_id AUTO_INCREMENT PRIMARY KEY, Episode INT, First broadcast Denmark ( DR1 ) VARCHAR, Official TNS Gallup ratings INT, First broadcast UK ( BBC Four ) VARCHAR, Official BARB ratings INT) CREATE TABLE economies_of_member_states (economies_of_member_states_id AUTO_INCREMENT PRIMARY KEY, Member State sorted by GDP VARCHAR, GDP in s billion of USD (2012) VARCHAR, GDP % of EU (2012) VARCHAR, Annual change % of GDP (2012) VARCHAR, GDP per capita in PPP US$ (2012) INT, Public Debt % of GDP (2013 Q1) VARCHAR, Deficit (-)/ Surplus (+) % of GDP (2012) VARCHAR, Inflation % Annual (2012) VARCHAR, Unemp. % 2013 M7 VARCHAR) CREATE TABLE hills_of_gödöllő (hills_of_gödöllő_id AUTO_INCREMENT PRIMARY KEY, Further Cities VARCHAR, County, Oblast or State VARCHAR, Country VARCHAR, Distance VARCHAR, Direction VARCHAR) CREATE TABLE americas (americas_id AUTO_INCREMENT PRIMARY KEY, Perpetrator VARCHAR, Date VARCHAR, Year INT, Location VARCHAR, Country VARCHAR, Killed VARCHAR, Injured VARCHAR)  
SELECT Rank FROM tallest_buildings_and_structures WHERE Name = battersea power station